Ok so there is windows uefi mode in "other OS" option should I turn that on since i see no "boot device control option"? And I cant find the legacy option. Also the ssd was running fine before I placed new motherboard and processor

I just got a new motherboard and processor. Ryzen 5 2600x and rog Strix x470 f gaming. Cpu fan spinning but no display. There are 2 led indicators. Red under sb power and green next to dram,cpu,vga,boot

I cant decide between if I should buy ryzen 5 2600x or i7 7700k. Yes I do play games. I know i7 7700k is better for only gaming and ryzen 5 2600x is better for workstation and also around 10-15 less fps in gaming than the i7 7700k. Price don't matter to me because I would end up spending around same amount for both of those. I know the i7 is expensive than r5 but since I'm already using i3 6100 the motherboard is compatible with the i7.
I7 7700k - $279.99
R5 2600x + ASRock X470 Gaming K4 - $339.98
R5 2600x + ASUS ROG Strix X470-F Gaming - $369.98

Problem fixed incase if someone run into same issue this is what I did. Instead of using PCI Express 6 Pin to 2 x 4 Pin Molex that came with the graphic card I used regular 6 pin from power supply and now my graphic card is providing display.

Evga told me the card is fine since led indicates word "cpu" but when I run the pc without graphic card everything runs fine so how it's cpu issue? Ugh I was so excited about this build but I see no solution.